Simple Definition of fancy dress

from our Learner's Dictionary

fancy dress

noun

chiefly British : special clothes that you wear to a party where people are dressed to look like famous people, characters, etc.
Everyone wore fancy dress for the ball.
a fancy-dress ball/party [=a costume ball/party]

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“Fancy dress.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/fancy%20dress. Accessed 17 Apr. 2026.

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